Codeigniter 3.1.7 - Severity: Notice Message: Array to string conversion

Question

Helo, Im new to php and CI. I just following ci tutorial here , and i got problem in this part .

Here is my model

public $rules_admin = array(
      'name' => array(
        'field' => 'name',
        'rules' => 'trim|required'
      ),
      'email' => array(
        'field' => 'email',
        'rules' => 'trim|required|valid_email|callback__unique_email'
      ),
      'password' => array(
        'field' => 'password',
        'rules' => 'trim|matches[password_confirm]'
      ),
      'password_confirm' => array(
        'field' => 'password_confirm',
        'rules' => 'trim|matches[password]'
      )
    );  

This is my controller

function edit($id = NULL)
  {
    $id == NULL || $this->data['user'] = $this->user_m->get($id);

    $rules = $this->user_m->rules_admin;
    $id || $rules['password'] .= '|required'; // i have Noticed about this

    $this->form_validation->set_rules($rules);
    if ($this->form_validation->run() == TRUE) {
    }

    $this->data['subview'] = 'components/admin_edit';
    $this->load->view('components/index', $this->data);
  }

  public function _unique_email($str)
  {
    $id = $this->uri->segment(4);
    $this->db->where('email', $this->input->post('email'));
    !$id || $this->db->where('id !=', $id);
    $user = $this->user_m->get();

    if (count($user)) {
      $this->form_validation->set_message('_unique_email', '%s should be unique');
      return FALSE;
    }

    return TRUE;
  }

I have loaded model, helper, library.

I also found 2 comments on video that provide solution, i try it but still not working.

What should i do? Thank you.

Answer 1

define $rules as an array on top of the method

$rules = array();
$rules = $this->user_m->rules_admin;

or

 $rules[] = $this->user_m->rules_admin;

---

No idea with what you trying to archive here $id || $rules['password'] .= ''; $id || $rules['password'] .= '';

If you need to push this to array you can use $rules['password'] = '|required'; (for password)

Answer 2

change

$id || $rules['password'] .= '|required';

to

$id || $rules['password']['rules'] .= '|required';

$rules['password'] is Array . Use String type . Operator, return Notice Message: Array to string conversion